Metal Samples Company MS3500E, Руководство пользователя

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D. ER Probe Body Design
ER probe bodies may be made in almost any design and material. Metal Samples frequently supplies
custom probe designs for atypical applications. However, a standard range of designs are available that
will cover the majority of uses. These standard designs are discussed in the following paragraphs.
The fixed length probe, which has a body constructed in 316L stainless steel, is a general purpose
probe construction. The probe comprises a welded flange or NPT pipe plug entry on a cylindrical shaft.
The probe is available in a variety of insertion lengths, although no length adjustment is available; hence
the name “fixed-length” probe.
This probe is available in all element styles, but for pipe plug entry, the flush element varieties can only
be accommodated on bushing sizes of 1½" NPT or greater. Pressure and temperature ratings are 3000
PSI and 500°F for pipe plug entries, whereas flanged entries are controlled by the flange rating. The
major limitation of this design is that the system needs depressurization prior to insertion or removal of
the probe.
Figure 10. Fixed Length ER Probe
Wire, Tube or Strip
Loop Element